'Breathless Bride'

Kirstie Mills is "dying to live" with cystic fibrosis.

01:49 | 02/22/2012

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Transcript for 'Breathless Bride'

Christine is one of approximately 70000 people in the world with cystic fibrosis. But no -- some experience my symptoms of the disease and lenders like -- have a much more severe case. So far there is... See More

Christine is one of approximately 70000 people in the world with cystic fibrosis. But no -- some experience my symptoms of the disease and lenders like -- have a much more severe case. So far there is no cure. The average life expectancy is around in the -- -- -- -- -- Christie's whole life has been plagued we can call comes in. Oh yeah yeah. -- -- In one way and -- -- and that it's made me. And he has done quite easy trade and it's talented friend nick eating. V is behind in hobby. -- -- -- -- indymac bank has stolen. -- has to have regular checkups at the hospital doctor and equipment has been treating Kirstie since she was a teenager. It's. Everything that he does keys together that really you know I would be running -- -- says that's what she -- so exhausted all the time that's just sitting down. When she can't walk past -- -- tingle running American. -- -- is about 16%. Compared to loss. A normal healthy person of the same age. And collect would be a measure of how seriously I'm well trustees we normally think about -- people for transplantation and -- -- lung function concerned about. 6306%. Say she's well -- If he doesn't get a transplant within a reasonable time frame then I'm afraid if nothing else -- we will be able. To do to help --

This transcript has been automatically generated and may not be 100% accurate.